Card Rulings:Taboo Star-vader, Rubidium

Question: With this unit's skill, I changed my opponent's attack target from my vanguard to my rear-guard. Does the "At the end of the battle that this unit attacks a vanguard..." ability activates? Answer: No, it will not activate, because it is now at the end of the battle that the unit attacks a rear-guard.

Question: I call a guardian after using this unit's skill. Does the guardian changes to guard the targeted unit?Answer: No, only the guardians present during this unit resolve its ability will be changed to guard the targeted unit.